Programmable logic controller



FIG. 1 is a front, bottom, left side perspective view of an embodiment of a programmable logic controller showing our new design;

FIG. 2 is a rear, top, right side perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a right side elevational view thereof;

FIG. 8 is a left side elevational view thereof;

FIG. 9 is a front, bottom, left side perspective view showing a condition in which the terminal block covers are opened thereof;

FIG. 10 is a rear, top, right side perspective view showing a condition in which the terminal block covers are opened thereof;

FIG. 11 is a front elevational view showing a condition in which the terminal block covers are opened thereof;

FIG. 12 is a top plan view showing a condition in which the terminal block covers are opened thereof;

FIG. 13 is a bottom plan view showing a condition in which the terminal block covers are opened thereof;

FIG. 14 is a right side elevational view showing a condition in which the terminal block covers are opened thereof;

FIG. 15 is a left side elevational view showing a condition in which the terminal block covers are opened thereof;

FIG. 16 is a front, bottom, left side perspective view of another embodiment of a programmable logic controller showing our new design;

FIG. 17 is a front elevational view thereof;

FIG. 18 is a rear elevational view thereof;

FIG. 19 is a top plan view thereof;

FIG. 20 is a bottom plan view thereof;

FIG. 21 is a right side elevational view thereof;

FIG. 22 is a left side elevational view thereof;

FIG. 23 is a front, bottom, left side perspective view showing a condition in which the terminal block covers are opened thereof;

FIG. 24 is a front elevational view showing a condition in which the terminal block covers are opened thereof;

FIG. 25 is a top plan view showing a condition in which the terminal block covers are opened thereof;

FIG. 26 is a bottom plan view showing a condition in which the terminal block covers are opened thereof;

FIG. 27 is a right side elevational view showing a condition in which the terminal block covers are opened thereof; and,

FIG. 28 is a left side elevational view showing a condition in which the terminal block covers are opened thereof.

The broken lines are shown in the figures for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a programmable logic controller, as shown and described. 